Air purifying method and air purifying filter element

Abstract

The invention relates to an air purifying method and an air purifying filter element. The air purifying filter element manufactured by the air purifying method comprises a primary particle filtering layer, a catalytic oxidizing and sterilizing layer, an organic gas adsorbing layer, a high-efficiency filtering layer and an ozone degrading catalyzing layer, wherein the pore diameter of the primary particle filtering layer is greater than or equal to 2.5 micrometers; the catalytic oxidizing and sterilizing layer is loaded with a formaldehyde oxidizing catalyst and a T-shaped tube, a chloride dioxide slow-release tablet is arranged in the T-shaped tube, and the organic gas adsorbing layer comprises adsorbent particles for adsorbing organic gas; the filtering pore diameter of the high-efficiency filtering layer is smaller than 2.5 micrometers; the ozone degrading catalyzing layer comprises a nanometer oxide catalyst for decomposing the ozone into oxygen at normal temperature. The air purifying filter element has the advantages that the breeding of pathogenic bacteria in the air purifying device can be inhibited by the chloride dioxide, and the indoor air quality is further improved; after the chloride dioxide is combined with the formaldehyde oxidizing catalyst, the double functions of reducing the content of formaldehyde and sterilizing bacteria are realized, and the indoor ozone pollution is eliminated.

Description

(1) Technical field [0001] The invention relates to the technical field of indoor air pollution control, in particular to an indoor air purification method and an air purification filter element, which can be widely used in indoor air purification devices. (2) Background technology [0002] Due to the rapid development of the industrial economy, the emission of air pollutants has increased significantly, and the domestic urban air environment has continued to deteriorate. The problem of indoor pollution has been paid more and more attention by people, and air purification devices have become an effective device for improving indoor air quality at present, and many families have begun to use air purification devices for a long time. [0003] The effective core unit of an air purification device is a filter element. The existing air purifier filter elements generally use primary particle filter layers, high-efficiency filter layers (HEPA), organic molecule adsorption layers, p...

AI Technical Summary

Problems solved by technology

Chinese patents (CN20152060036.3, CN201510489107.1) propose to add some silicate powder and probiotic particles with antibacterial effect in the middle of the adsorption particles of the adsorption layer, but the bactericidal effect of these silicate powders is not ideal, and even further breed bacteria

None of these technologies can completely solve the problem of how to maintain the antibacterial and bactericidal capabilities of the filter element when the air purification device is purifying the air.

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